US4844504A - Folding push-chair for a child - Google Patents

Folding push-chair for a child Download PDF

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Publication number
US4844504A
US4844504A US07/125,817 US12581787A US4844504A US 4844504 A US4844504 A US 4844504A US 12581787 A US12581787 A US 12581787A US 4844504 A US4844504 A US 4844504A
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US
United States
Prior art keywords
stroller
support arm
strut
main support
connecting rod
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US07/125,817
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English (en)
Inventor
Jean Bigo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ampafrance SA
Original Assignee
Ampafrance SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9305312&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=US4844504(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Ampafrance SA filed Critical Ampafrance SA
Application granted granted Critical
Publication of US4844504A publication Critical patent/US4844504A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B7/00—Carriages for children; Perambulators, e.g. dolls' perambulators
    • B62B7/04—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor
    • B62B7/06—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable
    • B62B7/08—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable in the direction of, or at right angles to, the wheel axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B7/00—Carriages for children; Perambulators, e.g. dolls' perambulators
    • B62B7/04—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor
    • B62B7/06—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable
    • B62B7/064—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable the handle bar being parallel to the front leg
    • B62B7/066—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable the handle bar being parallel to the front leg the handle bar moves in parallel relation during folding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B7/00—Carriages for children; Perambulators, e.g. dolls' perambulators
    • B62B7/04—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor
    • B62B7/14—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor with detachable or rotatably-mounted body
    • B62B7/147—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor with detachable or rotatably-mounted body rotatable as a whole to transform from seating to lying

Definitions

  • the invention relates to a collapsible push-chair for a child.
  • a collapsible foldable push-chair comprises, in a known manner, a support chassis for a carrier which in general may have adjustable inclination and be reversible.
  • the chassis may comprise two side assemblies which are linked transversely by at least one transverse strutting member.
  • each side assembly of the chassis can fold on itself and, in the case of a so-called ⁇ walking-stick ⁇ push-chair can fold up together to form a ⁇ bundle ⁇ of sticks, the strutting member being deformable so that the two side assemblies, during folding, can be brought together at the same time as they are folded on themselves.
  • the invention finds particular application with a folding push-chair of this type, and a principal object is to provide a push-chair of this type having a novel structure which is of easy use and is less cumbersome when in its collapsed state.
  • a collapsible push-chair of this invention comprises two side chassis assemblies and at least one transverse strutting member connecting the two side chassis assemblies, each side chassis assembly being deformable for collapsing and opening out of the push-chair and each side chassis assembly comprising a main support arm linked to a front strut and a rear strut, the main support arm being parallel to the front strut and co-operating in a sliding manner therewith between an outward position where the push-chair is opened out and a retracted position where the push-chair is collapsed, the rear strut being coupled to the main support arm and to the front strut by a pivot and by a controlling connecting rod, so that, during their sliding movements, the rear strut moves between a collapsed position in which it is closed against the main support arm and the front strut, and an opened out position in which the rear strut is in an active position, the connecting rod or the rear strut being coupled by a further connecting rod to a sleeve supporting a
  • the rear strut comprises a column pivoted on one of the main support arm and the front strut, the connecting rod which drives and maintains the position of the rear strut being pivoted to the column and to the other of the main support arm and front strut.
  • the column may be pivoted, at its upper extremity, to the upper extremity of the front strut, the connecting rod then being pivoted, at one extremity, part-way but preferably mid-way up the column and at its other extremity, to the lower extremity of the main support arm.
  • the connecting rod will then extend in front of the rear strut.
  • the front and rear struts, during folding, are closed one against the other thereby bringing close together their extremities carrying the wheels.
  • the column is pivoted, at its upper extremity, to the lower extremity of the main support arm and the connecting rod is pivoted, at one extremity, part-way but preferably mid-way up the column and at its other extremity to the upper extremity of the front strut.
  • the connecting rod will then extend to the rear of the rear strut.
  • the transverse strutting member may comprise a lattice or "X", or another system of folding such as rigid links, double hinges or the like, articulated on each side of the push-chair, to the rear strut and, depending upon the case, to the lower extremity of the main support arm or the front strut.
  • the co-operation of sliding between the main support arm and the front strut is preferably assured by providing at least one slider.
  • FIG. 1 is a side view of a first embodiment of folding push-chair according to the invention, in the opened-out state;
  • FIG. 2 is a view similar to FIG. 1, but for the collapsed state of the push-chair.
  • the push-chair comprises a chassis 1 which is mounted on single or double front wheels 2 and rear wheels 3, and which supports a carrier 4 or the like to receive a child, by means of two clamps 5 enabling the angular position of the carrier to be adjusted and locked.
  • the chassis 1 comprises two side chassis assemblies 6, similar and preferably identical, linked by at least one transverse strutting member 7 constituted by a lattice or "X", or rigid cross, double hinges, and so on.
  • the two assemblies 6 here are identical and symmetrical in relation to the vertical longitudinal median plane of the push-chair, and a description will be given for one assembly only.
  • Each assembly 6 generally made of metallic tubing or a plastic material, includes three essential elements: a main support arm 8, a front strut 9 and a rear strut 10.
  • the main support arm 8 is equipped, at its rear upper extremity, with a handle 12 or the like.
  • the front struts 9 and rear struts 10 carry wheels 2 and 3 respectively.
  • the main support arm 8 is parallel to the front strut 9 and co-operates with the latter in a sliding manner between an outward position when the push-chair is opened out (FIGS. 1 and 3) and a retracted position where the push-chair is collapsed (FIGS. 2 and 4).
  • the rear strut 10 is coupled to the main support arm 8 and to the front strut 9 so that, during the sliding movements of these, the rear strut 10 moves between an opened out position, in which it is in an active position, and a collapsed position, in which it is closed against the main support arm and the front strut.
  • the rod 13 is articulated on the column 10, about half-way up the latter, about a pin 14 with its axis transverse.
  • the other extremity of the rod 13 and the upper extremity of the column 10 are articulated about pins 15 and 16, with transverse axes, on the lower and upper extremities of the arm 8 and the front strut 9, respectively or irrespectively.
  • the clamp 5 of the carrier support 4 is carried by a sleeve 17 transversed freely by the arms 8 and by the front strut and therefore acting as a means for guiding the sliding motion.
  • the sleeve 17 is placed between the lower extremity of the arm 8 and the upper extremity of the front strut 9.
  • the position of the sleeve is defined by a short connecting rod 18 pivoted to the sleeve and to the rod 13 (FIGS. 1 and 2), or to the column 10 (FIGS. 3 and 4).
  • the rod 18 is arranged so that, for the collapsed position (FIGS. 2 and 4), the clamp 5 is situated more of less at the centre of the total length of the collapsed push-chair.
  • the sleeve 17 serves as a stop to limit the opening of the push-chair.
  • This stop is advantageously supplemented by a locking means composed of, for example, a resilient catch 19 carried by the sleeve 17 and able to co-operate with a notch 20 in a slider 21 which is fixed at the upper extremity of the front strut and which takes part in the guiding of the sliding movement, by being freely traversed by the arm 8.
  • the column 10 is articulated at 16 on the slider 21 and the rod 13 is articulated at 15 on the lower extremity of the arm 8 and is situated forward of the column.
  • the arm 8 is driven axially in the direction of arrow A, drawing with it the pivot 15 in the same movement; the column 10 swings towards the front in the direction of arrow B around the fixed pivot 16, by being drawn by the rod 13; during this movement, the short rod 18, driven by the rod 13, draws the sleeve 17 downwardly, carrying the carrier 4.
  • the arm 8 is practically completely retracted, the column 10 and the rod 13 are closed against the arm 8 and the front strut 9, the wheels 2, 3 are next to each other, and the carrier 4 is more or less centred.
  • Collapsing can be effected, after unlocking the two catches 19, by a simple axial pressure on the arms 8, the reduction ratio provided by the rod 13 enabling the user to dispense with also having directly to urge the rear struts 10.
  • the lattice 7 is articulated at its extremities, about axes perpendicular to the general plane of the lattice, on the columns 10 and on the lower emtremity of the arm 8.
  • the column 10 is articulated at 16 on the lower extremity of the arm 8 and the rod 13 is articulated at 15 on the slider 21 and is situated behind the column.
  • the arm 8 is driven in axially in the direction of the arrow A, drawing with it in the same movement the pivot 16; the column 10, which is held at its intermediate pivot 14 by the rod 13 pivoting about the fixed pivot 15 in the direction of arrow D, turns towards the rear in the direction of arrow E; during this movement, the short rod 18, driven by the column 10, draws the sleeve 17 carrying the carrier 4 downwardly,
  • the arm 8 is practically completely retracted, the column 10 and the rod 13 are closed against the arm 8 and the front strut 9, the wheels 2, 3 are opposed, and the carrier 4 is more or less centred.
  • the lattice 7 is articulated, at its extremities, about axes perpendicular to its general plane, at 16 on the column 10 and at an intermediate point 22 on the rod 13.
  • a push-chair according to the invention is of a very simple construction, since it is sufficient to pull or push axially the main support arms 8 to cause the collapsing or folding and the opening out thereof.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Carriages For Children, Sleds, And Other Hand-Operated Vehicles (AREA)
US07/125,817 1984-06-22 1987-11-23 Folding push-chair for a child Expired - Lifetime US4844504A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR848409814A FR2566357B1 (fr) 1984-06-22 1984-06-22 Poussette pliante pour enfant
FR8409814 1984-06-22

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
US06746089 Continuation 1985-06-18

Publications (1)

Publication Number Publication Date
US4844504A true US4844504A (en) 1989-07-04

Family

ID=9305312

Family Applications (1)

Application Number Title Priority Date Filing Date
US07/125,817 Expired - Lifetime US4844504A (en) 1984-06-22 1987-11-23 Folding push-chair for a child

Country Status (5)

Country Link
US (1) US4844504A (de)
BE (1) BE902646A (de)
DE (1) DE3522265A1 (de)
FR (1) FR2566357B1 (de)
GB (1) GB2163102B (de)

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5364119A (en) * 1993-10-12 1994-11-15 Reebok International Ltd. Collapsible frame assembly and stroller
US5669625A (en) * 1995-03-29 1997-09-23 Jane, S.A. Folding child's pushchair
US6113128A (en) * 1997-07-11 2000-09-05 Convaid Products, Inc. Mobile seating arrangement
US6203054B1 (en) * 1996-12-19 2001-03-20 Form Design Corporation Suspension for stroller
US6409205B1 (en) 1999-10-21 2002-06-25 Mattel, Inc. Infant car seat stroller
US20040026896A1 (en) * 2000-09-08 2004-02-12 David Crisp Collapsible pushchair/carrier
US20050035646A1 (en) * 2003-08-11 2005-02-17 Everett Richard C. Seat for collapsible jogging stroller
GB2392418B (en) * 2002-08-27 2005-05-18 Richard Charles Everett Foldable jogging stroller
US20050225056A1 (en) * 2004-04-13 2005-10-13 Graco Children's Products Inc. Foldable stroller
US20050258619A1 (en) * 2002-04-16 2005-11-24 Ampafrance Children's vehicle with a frame with sliding elements without a space therebetween and corresponding chassis
US20060049614A1 (en) * 2004-09-03 2006-03-09 Haim Shamah Collapsible folding utility cart
US20060066076A1 (en) * 2004-09-28 2006-03-30 Armon Ltd Folding baby buggy
US20060145441A1 (en) * 2003-02-21 2006-07-06 L'inglesina Baby S.P.A. Frame with telescopic closure, particularly for pushchairs or the like
US20070085302A1 (en) * 2005-10-19 2007-04-19 Link Treasure Limited Fodable baby stroller
US20080129001A1 (en) * 2006-12-04 2008-06-05 Emerson Anthony G Multi-use convertible infant carrying device
US20090134604A1 (en) * 2007-10-22 2009-05-28 Ichiro Ohnishi Canopied foldable baby carriage
CN101585373A (zh) * 2008-05-22 2009-11-25 多雷尔法国股份有限公司 具有滚动元件辅助折叠的折叠手推车
US20120056408A1 (en) * 2010-09-08 2012-03-08 Lerado (Zhong Shan) Industrial Co., Ltd Foldable stroller frame with an auto-extending wheel distance adjustment
US20120223508A1 (en) * 2011-03-03 2012-09-06 Aprica Children's Products Inc. Foldable Stroller
US20130113189A1 (en) * 2011-09-26 2013-05-09 Graco Children's Products Inc. Foldable Stroller and Frame Assembly

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2204282A (en) * 1987-04-11 1988-11-09 Sport Baby Ltd Folding infant carriage
DE4022391C1 (en) * 1990-07-13 1991-10-02 Josef Hofmann Metallwarenfabrik, 8622 Burgkunstadt, De Frame for perambulator - has foldable frame tubes with latches to hold in selected position
ES2026363A6 (es) * 1990-10-22 1992-04-16 Jane Sa Chasis plegable para coches-silla infantiles.
WO1992021544A1 (en) * 1991-05-25 1992-12-10 Matthew Richard Silverstone Folding pushchair
FR2850073B1 (fr) * 2003-01-17 2006-03-17 Gh Solutions Siege deployable
FR2856366B1 (fr) * 2003-06-23 2005-11-18 Ampafrance Voiture d'enfant a chassis pliant comprenant deux moyens de verrouillage pliage, distincts, et chassis correspondant
DE102010004979B4 (de) * 2010-01-18 2014-01-09 Tungtzu Industrial Co., Ltd Kinderwagen
CN105398481A (zh) * 2014-09-15 2016-03-16 程宝贤 婴儿推车的收折结构
CN108313110B (zh) * 2017-01-18 2020-10-09 明门瑞士股份有限公司 收合机构及幼儿载具

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2033309A (en) * 1978-09-30 1980-05-21 Priestley J B Collapsible framework for a pushchair, seat, or trolley
FR2477491A1 (fr) * 1980-03-10 1981-09-11 Kassai Kk Poussette d'enfant
FR2510060A1 (fr) * 1981-07-27 1983-01-28 Kassai Kk Poussette de bebe
US4412688A (en) * 1980-08-01 1983-11-01 Pietro Giordani Wheeled support structure for a seat or a carry-out of a baby's push chair or perambulator
US4412689A (en) * 1981-04-30 1983-11-01 Lee Byron D Folding support frame for stroller or the like
GB2120609A (en) * 1982-05-21 1983-12-07 Kassai Kk Handrail for baby carriage
US4449732A (en) * 1981-02-13 1984-05-22 Ampafrance S.A. Reversible foldable push-chair for children

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2033309A (en) * 1978-09-30 1980-05-21 Priestley J B Collapsible framework for a pushchair, seat, or trolley
FR2477491A1 (fr) * 1980-03-10 1981-09-11 Kassai Kk Poussette d'enfant
US4386790A (en) * 1980-03-10 1983-06-07 Kassai Kabushikikaisha Baby carriage
US4412688A (en) * 1980-08-01 1983-11-01 Pietro Giordani Wheeled support structure for a seat or a carry-out of a baby's push chair or perambulator
US4449732A (en) * 1981-02-13 1984-05-22 Ampafrance S.A. Reversible foldable push-chair for children
US4412689A (en) * 1981-04-30 1983-11-01 Lee Byron D Folding support frame for stroller or the like
FR2510060A1 (fr) * 1981-07-27 1983-01-28 Kassai Kk Poussette de bebe
US4428598A (en) * 1981-07-27 1984-01-31 Kassai Kabushikikaisha Baby carriage
GB2120609A (en) * 1982-05-21 1983-12-07 Kassai Kk Handrail for baby carriage

Cited By (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5364119A (en) * 1993-10-12 1994-11-15 Reebok International Ltd. Collapsible frame assembly and stroller
US5669625A (en) * 1995-03-29 1997-09-23 Jane, S.A. Folding child's pushchair
US6203054B1 (en) * 1996-12-19 2001-03-20 Form Design Corporation Suspension for stroller
US6113128A (en) * 1997-07-11 2000-09-05 Convaid Products, Inc. Mobile seating arrangement
US6409205B1 (en) 1999-10-21 2002-06-25 Mattel, Inc. Infant car seat stroller
US20040026896A1 (en) * 2000-09-08 2004-02-12 David Crisp Collapsible pushchair/carrier
US6918608B2 (en) * 2000-09-08 2005-07-19 Micralite Limited Collapsible pushchair/carrier
US20050258619A1 (en) * 2002-04-16 2005-11-24 Ampafrance Children's vehicle with a frame with sliding elements without a space therebetween and corresponding chassis
US7396038B2 (en) * 2002-04-16 2008-07-08 Ampafrance Children's vehicle with a frame with sliding elements without a space therebetween and corresponding chassis
GB2392418B (en) * 2002-08-27 2005-05-18 Richard Charles Everett Foldable jogging stroller
US7478825B2 (en) * 2003-02-21 2009-01-20 L'inglesina Baby S.P.A. Frame with telescopic closure, particularly for pushchairs or the like
US20060145441A1 (en) * 2003-02-21 2006-07-06 L'inglesina Baby S.P.A. Frame with telescopic closure, particularly for pushchairs or the like
US20050035646A1 (en) * 2003-08-11 2005-02-17 Everett Richard C. Seat for collapsible jogging stroller
WO2005100125A3 (en) * 2004-04-13 2006-01-26 Graco Childrens Prod Inc Foldable stroller
US7694995B2 (en) 2004-04-13 2010-04-13 Graco Children's Products Inc. Foldable stroller
US20050258620A1 (en) * 2004-04-13 2005-11-24 Graco Children's Products Inc. Stroller with cup holder
US7571925B2 (en) 2004-04-13 2009-08-11 Graco Children's Products Inc. Stroller with child barrier and pivotable cup holder
WO2005100125A2 (en) * 2004-04-13 2005-10-27 Graco Children's Products Inc. Foldable stroller
US20050225056A1 (en) * 2004-04-13 2005-10-13 Graco Children's Products Inc. Foldable stroller
US20080290631A1 (en) * 2004-04-13 2008-11-27 Graco Children's Products Inc. Stroller With Child Barrier and Pivotable Cup Holder
US7413213B2 (en) 2004-04-13 2008-08-19 Graco Children's Products Inc. Stroller with cup holder
US7445229B2 (en) 2004-04-13 2008-11-04 Graco Children's Products Inc. Stroller including movable basket assembly
US20060049614A1 (en) * 2004-09-03 2006-03-09 Haim Shamah Collapsible folding utility cart
US7281731B2 (en) 2004-09-03 2007-10-16 Haim Shamah Collapsible folding utility cart
US7390012B2 (en) * 2004-09-28 2008-06-24 Armon Ltd Folding baby buggy
US20060066076A1 (en) * 2004-09-28 2006-03-30 Armon Ltd Folding baby buggy
US20070085302A1 (en) * 2005-10-19 2007-04-19 Link Treasure Limited Fodable baby stroller
US7584985B2 (en) * 2005-10-19 2009-09-08 Link Treasure Limited Foldable baby stroller
US7497461B2 (en) * 2006-12-04 2009-03-03 Emerson Anthony G Multi-use convertible infant carrying device
US20080129001A1 (en) * 2006-12-04 2008-06-05 Emerson Anthony G Multi-use convertible infant carrying device
US8210562B2 (en) * 2007-10-22 2012-07-03 Aprica Children's Products Inc. Canopied foldable baby carriage
US20090134604A1 (en) * 2007-10-22 2009-05-28 Ichiro Ohnishi Canopied foldable baby carriage
US20090295129A1 (en) * 2008-05-22 2009-12-03 Cosco Management, Inc. Folding stroller with roller element-assisted folding
CN101585373A (zh) * 2008-05-22 2009-11-25 多雷尔法国股份有限公司 具有滚动元件辅助折叠的折叠手推车
US20120056408A1 (en) * 2010-09-08 2012-03-08 Lerado (Zhong Shan) Industrial Co., Ltd Foldable stroller frame with an auto-extending wheel distance adjustment
US8496263B2 (en) * 2010-09-08 2013-07-30 Lerado (Zhong Shan) Industrial Co., Ltd. Foldable stroller frame with an auto-extending wheel distance adjustment
US20120223508A1 (en) * 2011-03-03 2012-09-06 Aprica Children's Products Inc. Foldable Stroller
US20130113189A1 (en) * 2011-09-26 2013-05-09 Graco Children's Products Inc. Foldable Stroller and Frame Assembly
US8919806B2 (en) * 2011-09-26 2014-12-30 Graco Children's Products Inc. Foldable stroller and frame assembly
US20150108738A1 (en) * 2011-09-26 2015-04-23 Graco Children's Products Inc. Foldable Stroller and Frame Assembly

Also Published As

Publication number Publication date
FR2566357B1 (fr) 1988-04-08
DE3522265C2 (de) 1988-05-05
GB2163102B (en) 1987-10-14
GB2163102A (en) 1986-02-19
GB8515737D0 (en) 1985-07-24
FR2566357A1 (fr) 1985-12-27
BE902646A (fr) 1985-09-30
DE3522265A1 (de) 1986-01-02

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